Adjustable bed rail



FIG. 1 is a front perspective view of an adjustable bed rail showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof showing the new design in retracted configuration.

The broken lines in the drawings illustrate environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for an adjustable bed rail, as shown and described. 